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See Technical Specifications

LM3406HVMH/NOPB

75V 1.5A constant current buck LED driver

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM3406HVMH/NOPB
Datasheet:

LM3406HVMH/NOPB Datasheet (PDF)
Input voltage type:

DC/DC
Topology:

Buck
Vin (min) (V):

6
Vin (max) (V):

75
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LM3406HVMH/NOPB General Description

The LM3406 family are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. LED dimming via pulse width modulation (PWM) is achieved using a dedicated logic pin or by PWM of the power input voltage. The product feature set is rounded out with low-power shutdown and thermal shutdown protection.

Key Features

LM3406HV-Q1
- Automotive Grade Device
- AEC-Q100 Grade 1 Qualified
- Operating Ambient Temperature: –40°C to 125°C
Integrated 2.0A MOSFET
V_IN Range 6V to 42V (LM3406)
V_IN Range 6V to 75V (LM3406HV)
V_IN Range 6V to 75V (LM3406HV-Q1)
True Average Output Current Control
1.7A Minimum Output Current Limit Over Temperature
Cycle-by-Cycle Current Limit
PWM Dimming with Dedicated Logic Input
PWM Dimming with Power Input Voltage
Simple Control Loop Compensation
Low Power Shutdown
Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
Thermal Shutdown Protection
TSSOP-14 Package

Specifications

Input voltage type	DC/DC	Topology	Buck
Vin (min) (V)	6	Vin (max) (V)	75
Vout (max) (V)	73	Vout (min) (V)	0.2
Iout (max) (A)	1.5	Iq (typ) (mA)	1.2
Features	Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Precision Dimming Control, Thermal shutdown	Operating temperature range (°C)	-40 to 125
Dimming method	2-Wire, PWM	Number of channels	1
Rating	Catalog	feature-number-of-digits
feature-number-of-segments	5	feature-number-of-led-outputs
feature-topology		feature-process-technology
feature-input-output-type		feature-minimum-operating-supply-voltage-v	6
feature-maximum-operating-supply-voltage-v	75	feature-output-voltage-v	0.2 to 40
feature-maximum-supply-current-ua		feature-maximum-output-current-ma
feature-maximum-power-dissipation-mw		feature-packaging	Tube
feature-rad-hard		feature-pin-count	14
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No